Applied "spi: Qualcomm Quad SPI(QSPI) documentation" to the spi tree

[Mark Brown <broonie@xxxxxxxxxx>]

The patch

   spi: Qualcomm Quad SPI(QSPI) documentation

has been applied to the spi tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From db117f5f424829d54db32b1eddbb54b881a4f2e5 Mon Sep 17 00:00:00 2001
From: Girish Mahadevan <girishm@xxxxxxxxxxxxxx>
Date: Tue, 2 Oct 2018 14:47:07 -0700
Subject: [PATCH] spi: Qualcomm Quad SPI(QSPI) documentation

Bindings for Qualcomm Quad SPI used on SoCs such as sdm845.

Signed-off-by: Girish Mahadevan <girishm@xxxxxxxxxxxxxx>
Signed-off-by: Ryan Case <ryandcase@xxxxxxxxxxxx>
Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
 .../bindings/spi/qcom,spi-qcom-qspi.txt       | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.txt

diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.txt b/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.txt
new file mode 100644
index 000000000000..1d64b61f5171
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.txt
@@ -0,0 +1,36 @@
+Qualcomm Quad Serial Peripheral Interface (QSPI)
+
+The QSPI controller allows SPI protocol communication in single, dual, or quad
+wire transmission modes for read/write access to slaves such as NOR flash.
+
+Required properties:
+- compatible:	An SoC specific identifier followed by "qcom,qspi-v1", such as
+		"qcom,sdm845-qspi", "qcom,qspi-v1"
+- reg:		Should contain the base register location and length.
+- interrupts:	Interrupt number used by the controller.
+- clocks:	Should contain the core and AHB clock.
+- clock-names:	Should be "core" for core clock and "iface" for AHB clock.
+
+SPI slave nodes must be children of the SPI master node and can contain
+properties described in Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+
+	qspi: spi@88df000 {
+		compatible = "qcom,sdm845-qspi", "qcom,qspi-v1";
+		reg = <0x88df000 0x600>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+		clock-names = "iface", "core";
+		clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
+			 <&gcc GCC_QSPI_CORE_CLK>;
+
+		flash@0 {
+			compatible = "jedec,spi-nor";
+			reg = <0>;
+			spi-max-frequency = <25000000>;
+			spi-tx-bus-width = <2>;
+			spi-rx-bus-width = <2>;
+		};
+	};
-- 
2.19.0.rc2